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Article #803

Re: Conversion to |void*| and back: A NO-BRAINER

#803
From: Chip Salzenberg
Date: Fri, 25 Jan 1991 19:32
24 lines
1655 bytes
According to rfg@NCD.COM (Ron Guilmette):
>In article <27975414.50A8@tct.uucp> chip@tct.uucp (Chip Salzenberg) writes:
>>The "Differences from ANSI C" section of the ARM (18.2) does not
>>rescind that guarantee [T* -> void* -> T*].  Therefore, it must
>>still hold in C++.
>
>That's a bad assumption.  I have already noted other ommisions from
>the list in 18.2.  It is not a complete list.

I'd like to ask that Ron, or any anyone else with a list of omissions
in 1.82, post that list.  It should prove interesting.

I will conclude my discussion of |void *| thus:

Even if if the ARM and/or the ANSI C++ standard do not require that
the conversion of a |T *| to |void *| be reversible, *I* require it.
This behavior is obviously useful, hard to get wrong, and an integral
part of the programming model for which |void*| was invented.  Any
compiler that fails to provide this behavior will, in my opinion, have
earned the label "brain damaged," and wll not live on my hard disk.
-- 
Chip Salzenberg at Teltronics/TCT     <chip@tct.uucp>, <uunet!pdn!tct!chip>
       "If Usenet exists, then what is its mailing address?"  -- me
             "c/o The Daily Planet, Metropolis."  -- Jeff Daiell
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Message-ID: <27A087CA.10DD@tct.uucp>
Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!pdn!tscs!tct!chip
References: <70023@microsoft.UUCP> <27975414.50A8@tct.uucp> <3453@lupine.NCD.COM>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!pdn!tscs!tct!chip
From: chip@tct.uucp (Chip Salzenberg)
Newsgroups: comp.std.c++
Subject: Re: Conversion to |void*| and back: A NO-BRAINER
Keywords: Sun, C++
Message-ID: <27A087CA.10DD@tct.uucp>
Date: 25 Jan 91 19:32:24 GMT
References: <70023@microsoft.UUCP> <27975414.50A8@tct.uucp> <3453@lupine.NCD.COM>
Organization: Teltronics/TCT, Sarasota, FL
Lines: 24